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got diff?

Discussion in 'General Discussion' started by 1fastsedan, Apr 27, 2009.

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  1. Apr 27, 2009 #1
    1fastsedan

    1fastsedan Destroyer of Warranties

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    Tonights menu: a smorgasbord of current LX differential offerings. On the left is Builder Bill's 8.8 Ford differential, this one with 3.23 gears. In the center is the 226mm Getrag LSD standard on all 09 SRTs and stick shift R/Ts. The one on the right is the 05-08 215mm open differential, with Quaife LSD available. Just happened to have all 3 in the same place today.

    [​IMG]
     
  2. Apr 28, 2009 #2
    LegMaker

    LegMaker LMI - LegMakerIntakes

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    friggin cool!!! lol
     
  3. Apr 28, 2009 #3
    HalV48

    HalV48 They Call Me Patron

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    I'd like to borrow the BB 8.8 for a couple of years.

    Oh, that's Cam's. OK, I'll just steal it then.
     
    Last edited: Apr 28, 2009
  4. Apr 28, 2009 #4
    Cam

    Cam Management up n smoke

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    If you can pick it up.........................I'll let you have it. :sweat:





    hahaha, the pic doesn't show the size difference between them. The 8.8 is HUGE compared to the other two and weighs like 50lbs more. I highly doubt this unit will break anytime soon.
     
  5. Apr 28, 2009 #5
    Brute SRT

    Brute SRT Full Access Member

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    Being that i already have the 1000 hp half shafts, which one of those diffs would be the most cost effective for me to go with?

    thx
     
  6. Apr 28, 2009 #6
    1fastsedan

    1fastsedan Destroyer of Warranties

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    You would have to use the 215mm OEM unit with or without a Quaife LSD. 1000HP axles don't fit the 09 parts and Builder Bill's uses the 09 fitment too.
     
  7. Apr 28, 2009 #7
    Brute SRT

    Brute SRT Full Access Member

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    I don't plan on getting rid of my h/s so i guess my only options if i want an lsd would be to get a Quaife or OS Giken. Which do you recommend?

    Thanks
     
  8. Apr 28, 2009 #8
    1fastsedan

    1fastsedan Destroyer of Warranties

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    Any info on the OS Giken? I've never even heard of it before.
     
  9. Apr 28, 2009 #9
    Brute SRT

    Brute SRT Full Access Member

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  10. Apr 28, 2009 #10
    HalV48

    HalV48 They Call Me Patron

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    When I was much younger, I could pick up just about anything heavy. Now, I have to sit down to pee.
     
  11. Apr 28, 2009 #11
    1fastsedan

    1fastsedan Destroyer of Warranties

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    That looks like a GREAT product. I didn't see the LX diff listed as an application though. I also wonder what the cost is compared to the Quaife. If I were still looking, I'd be doing some more homework to make sure I didn't miss this.
     
  12. Apr 28, 2009 #12
    Brute SRT

    Brute SRT Full Access Member

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    If Sam Hubinette approves of this LSD, thats all i need to know. I'm guessing there using a Benzs application, i dunno. As for price, i think it's a couple hundred more then a Quaife. This is definitely the rout I'm going.
     
  13. Apr 29, 2009 #13
    Reacher

    Reacher SRTFIED

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    do you get winded while waiting for the bag to empty?

    :D
     
  14. May 26, 2009 #14
    Bud

    Bud GG EVO IX MR

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    What are the 06 SRT8 gears? Are they 3.23's?
     
  15. May 26, 2009 #15
    1fastsedan

    1fastsedan Destroyer of Warranties

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    3.06
     
  16. May 26, 2009 #16
    Bud

    Bud GG EVO IX MR

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    Do you notice any big difference quickness wise with the 3.23's? This puts you at the top of 3rd in the quarter right? What are the negatives at going with a smaller gear....3.55's?
     
  17. May 26, 2009 #17
    1fastsedan

    1fastsedan Destroyer of Warranties

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    I stayed with the 3.06. The top of 3rd in the quarter depends on tire height, horsepower, and gearing. I was planning on using the right size radial to avoid the 3-4 shift. The negatives with going to a taller gear (3.23 and 3.55) is that you lose some top end and your cruising RPM moves up. So with 3.55's, you'll be running the motor at 3k RPMS (or more) just to cruise at 75mph.
     
  18. May 26, 2009 #18
    Quick

    Quick Mgmt. - I can't help you

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    Anybody actually tried different gears? I wonder if there's only so far you can go before it takes a tune/programming the pcm? The predator has an option to adjust for gear changes but I think they only adjust for the speedometer. Question is where the PCM takes the signal from and what it checks. Your front wheel speed isn't going to change relative to the rear wheel speed but the input or output shaft rpm at the transmission will change relative to rear wheel rpm.
     
  19. May 26, 2009 #19
    Bud

    Bud GG EVO IX MR

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    Fuck Dave....I did a Mensa quiz in the back of the American Airlines magazine today on the flight home....and got 6 out of 10 correct! But you make me feel like a complete dumbass when I read your posts!! LOL
     
  20. May 26, 2009 #20
    1fastsedan

    1fastsedan Destroyer of Warranties

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    I'm pretty sure that the Predator setting changes more than just the speedo. The 5.7L guys are installing SRT rears and running them successfully with the Predator gearing change. There was also a 5.7 guy who didn't change his gearing with the Predator when running a 6.1 rear and he burned up some of his transmission.

    Here he is:
    http://www.lxforums.com/board/showpost.php?p=2263763&postcount=1
     
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